How big is a 2 carat alexandrite?
By HeyGema™ · Updated
In short
A 2 carat round alexandrite measures about 8.0 mm across (0.31 inches), 2% narrower than a 2 carat diamond (8.1 mm). An oval of the same weight is 9.9 x 6.8 mm and an emerald cut 8.7 x 6.2 mm.
- 8.0 mmround alexandrite, across
- 0.31 inthe same in inches
- 0.40 gweight
- 48%of a size 6 finger's width
Carat to mm calculator
About 8.0 x 8.0 mm
An estimate for a well-cut stone. A deep or shallow cut faces up smaller or bigger.
Round
8.0 mm
Oval
9.9 x 6.8 mm
Cushion
6.9 x 6.9 mm
Princess
6.8 x 6.8 mm
Emerald cut
8.7 x 6.2 mm
Asscher
6.8 x 6.8 mm
Radiant
8.0 x 6.2 mm
Pear
10.5 x 6.8 mm
Marquise
12.9 x 6.4 mm
Heart
8.0 x 8.0 mm
Trillion
8.7 x 8.7 mm
Baguette
9.9 x 4.9 mm
= 5 mm in every picture above
2 carat alexandrite size by shape
Face-up measurements of a well-cut 2 carat alexandrite. Alexandrite is denser than diamond (3.73 against 3.52), so it packs more weight into less space and faces up 2% narrower for the same weight.
- Round
- Length x width: 8.0 mm
- In inches: 0.31 in
- Oval
- Length x width: 9.9 x 6.8 mm
- In inches: 0.39 x 0.27 in
- Cushion
- Length x width: 6.9 x 6.9 mm
- In inches: 0.27 x 0.27 in
- Princess
- Length x width: 6.8 x 6.8 mm
- In inches: 0.27 x 0.27 in
- Emerald cut
- Length x width: 8.7 x 6.2 mm
- In inches: 0.34 x 0.24 in
- Asscher
- Length x width: 6.8 x 6.8 mm
- In inches: 0.27 x 0.27 in
- Radiant
- Length x width: 8.0 x 6.2 mm
- In inches: 0.32 x 0.24 in
- Pear
- Length x width: 10.5 x 6.8 mm
- In inches: 0.41 x 0.27 in
- Marquise
- Length x width: 12.9 x 6.4 mm
- In inches: 0.51 x 0.25 in
- Heart
- Length x width: 8.0 x 8.0 mm
- In inches: 0.32 x 0.32 in
- Trillion
- Length x width: 8.7 x 8.7 mm
- In inches: 0.34 x 0.34 in
- Baguette
- Length x width: 9.9 x 4.9 mm
- In inches: 0.39 x 0.19 in
2 carat alexandrite against other gems
- Diamond
- Round, 2 carat: 8.1 mm
- Moissanite
- Round, 2 carat: 8.4 mm
- Sapphire
- Round, 2 carat: 7.8 mm
- Ruby
- Round, 2 carat: 7.8 mm
- Emerald
- Round, 2 carat: 8.9 mm
- Aquamarine
- Round, 2 carat: 8.9 mm
- Morganite
- Round, 2 carat: 8.8 mm
- Tanzanite
- Round, 2 carat: 8.3 mm
- Alexandrite (this page)
- Round, 2 carat: 8.0 mm
2 carat alexandrite on a finger
- 4
- Finger width: 14.9 mm
- Round covers: 54%
- Oval covers: 46%
- 5
- Finger width: 15.7 mm
- Round covers: 51%
- Oval covers: 43%
- 6
- Finger width: 16.5 mm
- Round covers: 48%
- Oval covers: 41%
- 7
- Finger width: 17.3 mm
- Round covers: 46%
- Oval covers: 39%
- 8
- Finger width: 18.1 mm
- Round covers: 44%
- Oval covers: 37%
- 9
- Finger width: 18.9 mm
- Round covers: 42%
- Oval covers: 36%
Alexandrite at nearby weights
- 1.5 carat alexandrite
- Round diameter: 7.2 mm
- 2 ct (this page)
- Round diameter: 8.0 mm
- 3 carat alexandrite
- Round diameter: 9.1 mm
Questions
A round 2 carat alexandrite is about 8.0 mm across. Other shapes are longer than they are wide: an oval is 9.9 x 6.8 mm.
No. A round 2 carat alexandrite is 2% narrower than a 2 carat diamond (8.1 mm).
0.40 grams. A carat is 200 milligrams for every gem.
A round 2 carat alexandrite covers 48% of the width of a size 6 finger. Compare it with a ring you have tried on in the finger chart above.